Understanding Turbines: Gas vs Steam

What is the primary working fluid in a gas turbine?

• Steam

• Air

• Oil

• Water

How does a steam turbine generate power?

• A steam turbine generates power by converting steam energy into mechanical energy, which drives a generator.

• A steam turbine generates power by burning coal directly.

• A steam turbine generates power by using solar energy to heat water.

• A steam turbine generates power by converting wind energy into steam.

What are the main components of a gas turbine?

• Generator, Heat Exchanger, Fuel Pump

• Compressor, Combustion Chamber, Cooling System

• Compressor, Heat Exchanger, Exhaust System

• Compressor, Combustion Chamber, Turbine

What is the efficiency range of steam turbines?

• 30% to 45%

• 50% to 60%

• 10% to 20%

• 25% to 35%

In which applications are gas turbines commonly used?

• Power generation, aviation, industrial applications.

• Residential heating

• Agricultural irrigation

• Marine propulsion systems

What is the role of the combustion chamber in a gas turbine?

• The combustion chamber ignites fuel and air to produce high-pressure gases for turbine operation.

• The combustion chamber filters impurities from the air.

• The combustion chamber cools the air before it enters the turbine.

• The combustion chamber stores fuel for later use.

How does the Brayton cycle relate to gas turbines?

• The Brayton cycle describes the operation of electric generators.

• The Brayton cycle is a refrigeration cycle.

• The Brayton cycle is used in steam turbines.

• The Brayton cycle is the thermodynamic cycle that describes the operation of gas turbines.

What are the advantages of using steam turbines over gas turbines?

• Steam turbines are more expensive to maintain than gas turbines.

• Gas turbines have a longer lifespan than steam turbines.

• Steam turbines offer higher efficiency, better fuel flexibility, and longer lifespan compared to gas turbines.

• Steam turbines are less efficient than gas turbines.

What type of fuel can be used in gas turbines?

• Propane

• Coal

• Natural gas, diesel, kerosene, biofuels

• Electricity

What is the significance of the condenser in a steam turbine system?

• The condenser increases the temperature of the steam.

• The condenser is used to generate additional steam for the turbine.

• The condenser serves as a backup power source for the system.

• The condenser improves efficiency by condensing exhaust steam and reducing pressure.